Quote Originally Posted by EasternGirl View Post
Rofl...

I have the heavy things sitting on top of the cover...I tried the clips...next step is just to buy the tank with the lock lid when I get the money.
They only last a few years and then the clips break, leaving a small gap. The plastic isn't very durable. Inevitably, they get brittle and sort of just fall off.

The clip method isn't very convenient but will last longer. You have to use one at each end and one on each side. Just bend them to adjust for a tight fit.